1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
Operating System Overview True / False Questions: T / F â An operating system controls the execution of applications and acts as an interface between applications and the computer hardware. ANS: T 2. T / F â The operating system maintains information that can be used for billing purposes on multi-user systems. ANS: T 3. T / F â The operating system typically runs in parallel with application programs, on itâs own special O/S processor. ANS: F (O/S typically runs on same processor and relinquishes control as necessary) 4. T / F â One of the driving forces in operating system evolution is advancement in the underlying hardware technology. ANS: T 5.